_ FEATURES BL6503 *
_ High accuracy, less than 0.1% error over a
dynamic range of 500 : 1
_ Exactly measure the real power in the positive
orientation and negative orientation, calculate the
energy in the same orientation
_ A PGA in the current channel allows using small
value shunt and burden resistance
_ The low frequency outputs F1 and F2 can
directly drive electromechanical counters and two
phase stepper motors and the high frequency output
CF, supplies instantaneous real power, is intended for
calibration and communications
_ The logic outputs REVP can be used to indicate a
_ Low static power (typical value of 15mW).
The technology of SLiM (Smart–Low–current–
Management ) is used.
_ On-Chip power supply detector
_ On-Chip anti-creep protection
_ On-Chip voltage reference of 2.42V ± 8%
(typical temperature coefficient of 30ppm/℃)，with
external overdrive capability
_ Single 5V supply
_ Credible work, working time is more than twenty
Interrelated patents are pending
_ DESCRIPTIONBL6503 *
The BL6503 is a low cost, high accuracy, high
stability, simple peripheral circuit electrical energy
meter IC. The meter based on the BL6503 is intended
for using in single-phase, two-wire distribution
The BL6503 adopts the oversample technology
and digital signal processing technology. It can
exactly measure the real power in the positive
orientation and negative orientation and calculate the
energy in the same orientation. Moreover, BL6503
supplies the negative orientation indication on Pin20
(REVP). Therefore, the meter using the BL6503 has
great capability to avoid fault condition.
The BL6503 supplies average real power
information on the low frequency outputs F1 (Pin23)
and F2 (Pin24). These logic outputs may be used to
directly drive an electromechanical counter and
two-phase stepper motors. The CF (Pin22) logic
output gives instantaneous real power information.
This output is intended to be used for calibration
purposes or interface to an MCU.
The BL6503 adopts the technology of SLim and
decreases greatly the static power. This technology
also decreases the request for power supply.
BL6503 thinks over the stability of reading
error in the process of calibration.. An internal no-load
threshold ensures that the BL6503 does not exhibit
any creep when there is no load.